Saw this posted elsewhere and thought it would make a decent addition to the collection.

This looks interesting considering EVH is famous for saying he never used any sort of distortion / overdrive pedal.

The MXR design team has collaborated with Eddie Van Halen to deliver a full range of powerful saturation and hyper-driven tones right at your feet. The resulting EVH 5150 Overdrive joins hand-adjusted multi-stage MOSFETs with a full complement of controls to deliver overdriven tube-like tones and exceptional sonic flexibility through a wide variety of amps and speaker...

I figured I'd toss this up here since I have one coming my way in a few days. It seems to have a mix of ICs and transistors.

so i figured it's my turn to give back...

i got one of these on ebay a few years ago, and it's still one of my faves. i'd be willing to take it apart if anyone is interested in tracing it. it'll take a little desoldering as it's wired up pretty tight. transistor no's are covered up with what looks like nail polish. i'm sure a little bit of acetone on a q-tip would let them be known. also- it's done on perf, and theres a piece of fuzzy cloth over the back of the board that'll have to be ripped...

Here are some pictures of the Wyllie Moonrock. I started trying to reverse this. There are some pictures over at TheGearPage, here:

Here are some images I made in photoshop.

This picture tries to show the top, which hopefully aligns with the next image:

Here's the bottom:

Then I drew in all of the PCB connections, red circles, and tried to fill in values for parts.

Anyone have one? No info on the Bartolini site and the contact page says they hope to have email back up and running by late 2005 ! Thanks.

I saw Gov't Mule the other night and Warren sounded better than ever. He was using les gain and sounded killer! I did notice the little toggle by his vol/tone knobs but didnt know what it was. Then I happend on the video of his new built in buffer/preamp
Anybody have any info on this unit?
This is a replica of what John Cutler developed for Jerry Garcia's guitars.

Huge pic of it here

Found these pics on Ebay claiming to be that unit

Hey guys,

I'm new here and was only active in a German diy board.

I'm interested in the schematics of the Mad Professor Forest Green Compressor .
Do you know anything about this pedal?

Regards,
Samuel

It's about time I contribute something to this forum. I tried myself at tracing my idiotboxeffects Blower Box. It's a great distortion box (both guitar and bass) and flavor-of-the-month over at talkbass.com. Turns out it is a RAT frontend with the Filter control replaced by a passive baxandall network. It'd be graet if someone could check the schematic against the pics or an actual unit, as this is my first trace. Anywho here is a link to the schematic and pix.

These were donated by a friend. :)

Apparently, the op amp shown is not the one that shipped with the unit. The original was sanded down to remove the markings / part number. I'll see if I can get a photo of it.

Also, the two mini pots are both B5K.